BS 4732:1988

National foreword
Committees responsible
Specification
1. Scope and field of application
2. Conformance
3. References
4. Definitions
5. Notation
6. Arrangement of labels and files
7. File structure for data interchange
8. Format and contents of the labels and label sets
9. Levels of interchange
10. Requirements for the description of systems
11. Requirements for an originating system
12. Requirements for a receiving system
Annexes
A. IRV code table for ISO 646
B. Initialized volumes
C. Main differences between the first edition (1979)
    and the present (second) edition of this
    International Standard

Specifies file structure and labelling for the interchange of information between users of information processing systems.

This International Standard specifies the file structure and the labelling of magnetic tapes for the interchange of information between users of information processing systems.

This International Standard also specifies

• volume and file structure;
• basic characteristics of the blocks containing the records constituting the file;
• recorded labels for identifying files, file sections and volumes of magnetic tapes;
• four nested levels of interchange.

Furthermore, this International Standard specifies requirements for the processes which are provided within information processing systems, to enable information to be interchanged between different systems, utilizing recorded magnetic tape as the medium of interchange. For this purpose it specifies the functions to be provided within systems which are intended to originate or receive magnetic tape volumes which conform to this International Standard.